Celestron NexStar 4 SE 102mm f/13 Maksutov-Cassegrain Go-To Telescope

Celestron NexStar 4 SE 102mm f/13 Maksutov-Cassegrain Go-To Telescope

Celestron NexStar 4 SE 102mm f/13 Maksutov-Cassegrain Go-To Telescope

B&H # CEN4SE MFR # 11049
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Product Highlights

  • 102mm Maksutov-Cassegrain Telescope
  • 1325mm Focal Length, f/13 Focal Ratio
  • StarBright XLT Optical Coating System
  • Single Fork Motorized GoTo Alt-Az Mount
  • 1.25" 25mm Eyepiece
  • SkyAlign Alignment Technology
  • NexStar+ Computer Hand Controller
  • 40,000 Object Database with Sky Tours
  • Red Dot StarPointer Finder
  • Stainless Steel Tripod with Wedge
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You Pay: $499.00

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  • 1Description

Celestron's NexStar 4 SE 102mm f/13 Maksutov-Cassegrain Go-To Telescope is a powerful, versatile and user-friendly Maksutov-Cassegrain style telescope that can be used for observing everything from the Moon and planets to deep sky objects like galaxies and nebulae. Using Celestron's proprietary StarBright XLT multi-coating system, light transmission is increased throughout the entire optical path with anti-reflection multi-coated lenses, highly reflective multi-coated mirrors, and BK7 optical glass.

The scope's Maksutov variation of the Cassegrain optical system exchanges the front corrector plate of the more common Schmidt design with a convex meniscus lens which not only eliminates the need for periodic collimation, but the nature of the lens requires a smaller secondary mirror which limits obstruction and increases contrast. This optical system, coupled with its precision tracking, allows it to be a competent astrophotography/astroimaging platform for the Moon and planets - despite its relatively slow f/13 focal ratio

Driving the dual servo motors on the mount is the brains of the NexStar 4SE: the iconic NexStar computer hand controller. Packed with almost 40,000 celestial objects, it can hold up to 25 additional user-defined destinations and is updateable via the Celestron website. It has multiple alignment procedures to get you observing fast - including the super-easy SkyAlign system. Capable of being used in the northern or southern hemispheres, the NexStar has sidereal, lunar and solar tracking speeds to accurately follow near and deep-sky objects, plus nine slew speeds.

  • 4" aperture
  • f/13 focal ratio
  • 1325mm focal length
  • BK7 optical glass primary mirror
  • StarBright XLT optical coatings: Multi-layer aluminum/SiO2 (quartz)/TiO2 (titanium dioxide)/Si02 (silicon dioxide) mirror coatings with flat reflectivity across the light spectrum for both astrophotography/astroimaging and visual observation
  • Multi-layer MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide) anti-reflective lens coatings
  • High-transmission water white glass corrector lens with 97.4% light transmission
  • Resolution: Rayleigh: 1.36 arcsec / Dawes: 1.14 arcsec
  • Secondary mirror obstruction: 1.25", 34.4% by diameter / 11% by area
NexStar Computer Controller
  • Two-line, 16-character LCD display
  • 19 fiber optic backlit red LED buttons
  • Database of over 38,000 celestial objects plus 25 user-defined
  • Automatically slew to planets, objects, constellations plus a variety of catalogs, including the Messier, NGC, Caldwell, and SAO brightest stars
  • Anti-backlash compensation programs-out play between gears for more precise tracking
  • Tour Mode: Shows a selection of the most popular objects for the time and date you are observing
  • Pre-programmed alignment systems including SkyAlign, Auto 2-Star, 1-Star, 2-Star, and Solar System for fast and easy set up
  • SkyAlign alignment: Takes minutes, with minimal effort or experience - Point the telescope at three bright objects in the sky, and the telescope does the rest
  • Pre-set sidereal, solar, and lunar slew speeds for observing the fast-moving Moon, to slower-moving deep space subjects
  • Nine slew speeds: 4°/sec, 2°/sec, 1°/sec, 0.5°/sec, 2x, 4x, 8x,16x, and 32x
  • RS-232 communication port allows for computer control
  • Flash updateable via the Celestron website
  • Single fork alt-az
  • Dual-axis servo motors with optical encoders allow for precise tracking with virtually no vibration
  • Motor resolution: 0.26 arcsec
  • Communication ports: Autoguider port, Aux port, hand-controller
  • Runs on eight user-supplied AA batteries or optional 12VDC power supply
Viewing Options
  • Integrated internal 90° flip mirror
  • With mirror flipped up the 90° angle puts head in a comfortable viewing position when scope is pointed at or near the zenith
  • Lay mirror down to direct light to the visual back for astrophotography/imaging
  • 1.25" diameter barrel
  • 25mm focal length produces 53x magnification
  • Anti-reflection multi-coated glass improves color rendition and contrast
  • Threaded barrel accepts most 1.25" astronomical filters
  • Fold down rubber eyecups for use with or without eyeglasses
  • Projects a single red dot in line of sight
  • Un-magnified to make finding objects faster and easier
  • Used primarily for alignment process
UPC: 050234110495
In the Box
Celestron NexStar 4 SE 102mm f/13 Maksutov-Cassegrain Go-To Telescope
  • E-Lux 25.0mm 1.25" Eyepiece
  • StarPointer Finderscope
  • NexRemote Control Software CD
  • The Sky CD-ROM Software for Windows
  • RS-232 to Serial Port Cable - for GPS 16 Accessory
  • NexStar Hand Controller
  • Tripod with Accessory Tray
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Optical Design Maksutov-Cassegrain reflector
    Aperture 102 mm
    Focal Length 1325 mm
    Focal Ratio f/13
    Eyepiece Barrel Diameter 1.25"
    Diagonal Integrated 90° flip
    Finderscope StarPointer
    GO-TO Capability Yes, NexStar controller
    Tripod Stainless steel legs
    Adjustable height
    Built-in equatorial wedge
    Weight 10 lb / 4.5 kg
    Mount Type Motorized alt-az
    Single-arm fork
    Power Source 8 x AA batteries
    Optical Tube Length 13.5" / 342.9 mm
    Weight 21.0 lb / 9.5 kg, OTA/Mount/Tripod
    Packaging Info
    Package Weight 38.0 lb
    Box Dimensions (LxWxH) 32.0 x 27.5 x 13.5"

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